[asterisk-commits] res xmpp: Google OAuth 2.0 protocol support for XMPP / Motif (asterisk[master])
SVN commits to the Asterisk project
asterisk-commits at lists.digium.com
Tue Aug 15 08:29:42 CDT 2017
Jenkins2 has submitted this change and it was merged. ( https://gerrit.asterisk.org/6152 )
Change subject: res_xmpp: Google OAuth 2.0 protocol support for XMPP / Motif
......................................................................
res_xmpp: Google OAuth 2.0 protocol support for XMPP / Motif
Add ability to use tokens instead of passwords according to Google OAuth 2.0
protocol.
ASTERISK-27169
Reported by: Andrey Egorov
Tested by: Andrey Egorov
Change-Id: I07f7052a502457ab55010a4d3686653b60f4c8db
---
M CHANGES
M configs/samples/xmpp.conf.sample
M res/res_xmpp.c
3 files changed, 115 insertions(+), 13 deletions(-)
Approvals:
Joshua Colp: Looks good to me, but someone else must approve
George Joseph: Looks good to me, approved
Jenkins2: Approved for Submit
diff --git a/CHANGES b/CHANGES
index f6c94f8..67454bc 100644
--- a/CHANGES
+++ b/CHANGES
@@ -73,6 +73,12 @@
* New dialplan function PJSIP_DTMF_MODE added to get or change the DTMF mode
of a channel on a per-call basis.
+res_xmpp
+-----------------
+ * OAuth 2.0 authentication is now supported when contacting Google. Follow the
+ instructions in xmpp.conf.sample to retrieve and configure the necessary
+ tokens.
+
------------------------------------------------------------------------------
--- Functionality changes from Asterisk 14.5.0 to Asterisk 14.6.0 ------------
------------------------------------------------------------------------------
diff --git a/configs/samples/xmpp.conf.sample b/configs/samples/xmpp.conf.sample
index dad0f79..e3a4be1 100644
--- a/configs/samples/xmpp.conf.sample
+++ b/configs/samples/xmpp.conf.sample
@@ -18,6 +18,29 @@
;pubsub_node=pubsub.astjab.org ; Node to use for publishing events via PubSub
;username=asterisk at astjab.org/asterisk ; Username with optional resource.
;secret=blah ; Password
+;refresh_token=TOKEN_VALUE ; Refresh token issued by Google OAuth 2.0 protocol.
+ ; `secret` must NOT be set if you use OAuth.
+ ; See https://developers.google.com/identity/protocols/OAuth2WebServer
+ ; for more details.
+ ; For test reasons you can obtain one on the page
+ ; https://developers.google.com/oauthplayground/
+ ; 1. Click on Settings icon, check "Use your own OAuth credentials"
+ ; and enter your Client ID and Client Secret (see below).
+ ; 2. Input the scope https://www.googleapis.com/auth/googletalk
+ ; and push "Authorize APIs" button.
+ ; 3. Approve permissions.
+ ; 4. On section "Step 2" push "Exchange authorization code for tokens"
+ ; and get your Refresh token.
+;oauth_clientid=OAUTH_CLIENT_ID_VALUE ; The application's client id to authorize using Google OAuth 2.0 protocol.
+;oauth_secret=OAUTH_SECRET_VALUE ; The application's client secret to authorize using Google OAuth 2.0 protocol.
+ ; 1. Create new Project on the page:
+ ; https://console.cloud.google.com/apis/credentials/oauthclient
+ ; 2. Create new Application ID on the same page with type Web-application.
+ ; In section "Allowed URI redirections" put the path to the corresponding
+ ; script on your site or https://developers.google.com/oauthplayground
+ ; if you would like to obtain refresh_token from users by hand
+ ; (for example, for test reasons).
+ ; 3. Client ID and Client Secret will be shown and available on the same page.
;priority=1 ; Resource priority
;port=5222 ; Port to use defaults to 5222
;usetls=yes ; Use tls or not
diff --git a/res/res_xmpp.c b/res/res_xmpp.c
index cc9d56f..f8eb505 100644
--- a/res/res_xmpp.c
+++ b/res/res_xmpp.c
@@ -59,6 +59,7 @@
#include "asterisk/manager.h"
#include "asterisk/cli.h"
#include "asterisk/config_options.h"
+#include "asterisk/json.h"
/*** DOCUMENTATION
<application name="JabberSend" language="en_US" module="res_xmpp">
@@ -321,6 +322,15 @@
<configOption name="secret">
<synopsis>XMPP password</synopsis>
</configOption>
+ <configOption name="refresh_token">
+ <synopsis>Google OAuth 2.0 refresh token</synopsis>
+ </configOption>
+ <configOption name="oauth_clientid">
+ <synopsis>Google OAuth 2.0 application's client id</synopsis>
+ </configOption>
+ <configOption name="oauth_secret">
+ <synopsis>Google OAuth 2.0 application's secret</synopsis>
+ </configOption>
<configOption name="serverhost">
<synopsis>Route to server, e.g. talk.google.com</synopsis>
</configOption>
@@ -459,6 +469,9 @@
AST_STRING_FIELD(name); /*!< Name of the client connection */
AST_STRING_FIELD(user); /*!< Username to use for authentication */
AST_STRING_FIELD(password); /*!< Password to use for authentication */
+ AST_STRING_FIELD(refresh_token); /*!< Refresh token to use for OAuth authentication */
+ AST_STRING_FIELD(oauth_clientid); /*!< Client ID to use for OAuth authentication */
+ AST_STRING_FIELD(oauth_secret); /*!< Secret to use for OAuth authentication */
AST_STRING_FIELD(server); /*!< Server hostname */
AST_STRING_FIELD(statusmsg); /*!< Status message for presence */
AST_STRING_FIELD(pubsubnode); /*!< Pubsub node */
@@ -527,6 +540,7 @@
static ast_mutex_t messagelock;
static int xmpp_client_config_post_apply(void *obj, void *arg, int flags);
+static int fetch_access_token(struct ast_xmpp_client_config *cfg);
/*! \brief Destructor function for configuration */
static void ast_xmpp_client_config_destructor(void *obj)
@@ -759,11 +773,15 @@
if (ast_strlen_zero(clientcfg->user)) {
ast_log(LOG_ERROR, "No user specified on client '%s'\n", clientcfg->name);
return -1;
- } else if (ast_strlen_zero(clientcfg->password)) {
- ast_log(LOG_ERROR, "No password specified on client '%s'\n", clientcfg->name);
+ } else if (ast_strlen_zero(clientcfg->password) && ast_strlen_zero(clientcfg->refresh_token)) {
+ ast_log(LOG_ERROR, "No password or refresh_token specified on client '%s'\n", clientcfg->name);
return -1;
} else if (ast_strlen_zero(clientcfg->server)) {
ast_log(LOG_ERROR, "No server specified on client '%s'\n", clientcfg->name);
+ return -1;
+ } else if (!ast_strlen_zero(clientcfg->refresh_token) &&
+ (ast_strlen_zero(clientcfg->oauth_clientid) || ast_strlen_zero(clientcfg->oauth_secret))) {
+ ast_log(LOG_ERROR, "No oauth_clientid or oauth_secret specified, so client '%s' can't be used\n", clientcfg->name);
return -1;
}
@@ -776,6 +794,9 @@
/* If any configuration options are changing that would require reconnecting set the bit so we will do so if possible */
if (strcmp(clientcfg->user, oldclientcfg->user) ||
strcmp(clientcfg->password, oldclientcfg->password) ||
+ strcmp(clientcfg->refresh_token, oldclientcfg->refresh_token) ||
+ strcmp(clientcfg->oauth_clientid, oldclientcfg->oauth_clientid) ||
+ strcmp(clientcfg->oauth_secret, oldclientcfg->oauth_secret) ||
strcmp(clientcfg->server, oldclientcfg->server) ||
(clientcfg->port != oldclientcfg->port) ||
(ast_test_flag(&clientcfg->flags, XMPP_COMPONENT) != ast_test_flag(&oldclientcfg->flags, XMPP_COMPONENT)) ||
@@ -2784,7 +2805,13 @@
}
iks_insert_attrib(auth, "xmlns", IKS_NS_XMPP_SASL);
- iks_insert_attrib(auth, "mechanism", "PLAIN");
+ if (!ast_strlen_zero(cfg->refresh_token)) {
+ iks_insert_attrib(auth, "mechanism", "X-OAUTH2");
+ iks_insert_attrib(auth, "auth:service", "oauth2");
+ iks_insert_attrib(auth, "xmlns:auth", "http://www.google.com/talk/protocol/auth");
+ } else {
+ iks_insert_attrib(auth, "mechanism", "PLAIN");
+ }
if (strchr(client->jid->user, '/')) {
char *user = ast_strdupa(client->jid->user);
@@ -3283,28 +3310,28 @@
{
iks *iq, *ping;
int res;
-
+
ast_debug(2, "JABBER: Sending Keep-Alive Ping for client '%s'\n", client->name);
if (!(iq = iks_new("iq")) || !(ping = iks_new("ping"))) {
iks_delete(iq);
return -1;
}
-
+
iks_insert_attrib(iq, "type", "get");
iks_insert_attrib(iq, "to", to);
iks_insert_attrib(iq, "from", from);
-
+
ast_xmpp_client_lock(client);
iks_insert_attrib(iq, "id", client->mid);
ast_xmpp_increment_mid(client->mid);
ast_xmpp_client_unlock(client);
-
+
iks_insert_attrib(ping, "xmlns", "urn:xmpp:ping");
iks_insert_node(iq, ping);
-
+
res = ast_xmpp_client_send(client, iq);
-
+
iks_delete(ping);
iks_delete(iq);
@@ -3625,6 +3652,13 @@
return -1;
}
+ if (!ast_strlen_zero(clientcfg->refresh_token)) {
+ ast_debug(2, "Obtaining OAuth access token for client '%s'\n", client->name);
+ if (fetch_access_token(clientcfg)) {
+ return -1;
+ }
+ }
+
ast_xmpp_client_disconnect(client);
client->timeout = 50;
@@ -3641,7 +3675,7 @@
/* Set socket timeout options */
setsockopt(iks_fd(client->parser), SOL_SOCKET, SO_RCVTIMEO, (char *)&tv,sizeof(struct timeval));
-
+
if (res == IKS_NET_NOCONN) {
ast_log(LOG_ERROR, "No XMPP connection available when trying to connect client '%s'\n", client->name);
return -1;
@@ -3726,7 +3760,7 @@
/* Log the message here, because iksemel's logHook is
unaccessible */
xmpp_log_hook(client, buf, len, 1);
-
+
if(buf[0] == ' ') {
ast_debug(1, "JABBER: Detected Google Keep Alive. "
"Sending out Ping request for client '%s'\n", client->name);
@@ -3865,6 +3899,42 @@
/* All buddies are unlinked from the configuration buddies container, always */
return 1;
+}
+
+static int fetch_access_token(struct ast_xmpp_client_config *cfg)
+{
+ RAII_VAR(char *, cmd, NULL, ast_free);
+ char cBuf[1024] = "";
+ const char *url = "https://www.googleapis.com/oauth2/v3/token";
+ struct ast_json_error error;
+ RAII_VAR(struct ast_json *, jobj, NULL, ast_json_unref);
+
+ ast_asprintf(&cmd, "CURL(%s,client_id=%s&client_secret=%s&refresh_token=%s&grant_type=refresh_token)",
+ url, cfg->oauth_clientid, cfg->oauth_secret, cfg->refresh_token);
+
+ ast_debug(2, "Performing OAuth 2.0 authentication for client '%s' using command: %s\n",
+ cfg->name, cmd);
+
+ if (!ast_func_read(NULL, cmd, cBuf, sizeof(cBuf) - 1)) {
+ ast_log(LOG_ERROR, "CURL is unavailable. This is required for OAuth 2.0 authentication of XMPP client '%s'. Please ensure it is loaded.\n",
+ cfg->name);
+ return -1;
+ }
+
+ ast_debug(2, "OAuth 2.0 authentication for client '%s' returned: %s\n", cfg->name, cBuf);
+
+ jobj = ast_json_load_string(cBuf, &error);
+ if (jobj) {
+ const char *token = ast_json_string_get(ast_json_object_get(jobj, "access_token"));
+ if (token) {
+ ast_string_field_set(cfg, password, token);
+ return 0;
+ }
+ }
+
+ ast_log(LOG_ERROR, "An error occurred while performing OAuth 2.0 authentication for client '%s': %s\n", cfg->name, cBuf);
+
+ return -1;
}
static int xmpp_client_config_post_apply(void *obj, void *arg, int flags)
@@ -4620,8 +4690,8 @@
* Module loading including tests for configuration or dependencies.
* This function can return AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_DECLINE,
* or AST_MODULE_LOAD_SUCCESS. If a dependency or environment variable fails
- * tests return AST_MODULE_LOAD_FAILURE. If the module can not load the
- * configuration file or other non-critical problem return
+ * tests return AST_MODULE_LOAD_FAILURE. If the module can not load the
+ * configuration file or other non-critical problem return
* AST_MODULE_LOAD_DECLINE. On success return AST_MODULE_LOAD_SUCCESS.
*/
static int load_module(void)
@@ -4639,6 +4709,9 @@
aco_option_register(&cfg_info, "username", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, user));
aco_option_register(&cfg_info, "secret", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, password));
+ aco_option_register(&cfg_info, "refresh_token", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, refresh_token));
+ aco_option_register(&cfg_info, "oauth_clientid", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, oauth_clientid));
+ aco_option_register(&cfg_info, "oauth_secret", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, oauth_secret));
aco_option_register(&cfg_info, "serverhost", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, server));
aco_option_register(&cfg_info, "statusmessage", ACO_EXACT, client_options, "Online and Available", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, statusmsg));
aco_option_register(&cfg_info, "pubsub_node", ACO_EXACT, client_options, NULL, OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_xmpp_client_config, pubsubnode));
--
To view, visit https://gerrit.asterisk.org/6152
To unsubscribe, visit https://gerrit.asterisk.org/settings
Gerrit-Project: asterisk
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I07f7052a502457ab55010a4d3686653b60f4c8db
Gerrit-Change-Number: 6152
Gerrit-PatchSet: 11
Gerrit-Owner: Andrey <andr06 at gmail.com>
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Jenkins2
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
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